Source: NASA's Goddard Space Flight Center
Published: May 12, 2021
Historical Date: May 11, 2021

This video shows the James Webb Space Telescope's mirrors during their long string of tests, from individual segments to the final tests of the assembled mirror.

Click here to learn more about the journey of the mirrors.

Read more about our latest milestone, the mirrors last unfolding on Earth. The next time will be in space!

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